Device for controlling the delivery of chutes.



No. 790,852. 7 PATENTED MAY 28, 1905.

J. PIZA. DEVICE FOR CONTROLLING THE DELIVERY OF OHUTES.

APPLICATION FILED MAY 31. 1904.

2 SHBETS-SHEBT 1.

vweufoz PATENTED MAY 23, 1905.

J. PIZA. DEVICE FOR CONTROLLING THE DELIVERY OF CHUTES APPLICATION FILED MAY 31,1904.

2 SHEETSSHEET 2.

witneooao Patented May 23, 1905.

i ATENT FFT J OSEF PIZA, OF PUEBLO, COLORADO.

DEVICE FOR CONTROLLING THE DELIVERY OFOCHUTES.

SPECIFICATION forming part of Letters Patent No. 790,852, dated May 2 3, 1905.

Application filed May 31, 1904:. Serial No. 210,535.

To all whom it may concern.-

Be it known that I, JosEF PIZA, a citizen of the United States, residing at Pueblo, in the county of Pueblo and State of Colorado, have invented certain new and useful Improvements in Means for Controlling the Delivery of Chutes, of which the following is a specification.

This invention appertains to controlling means for chutes through which coal, ore, grain, and various commodities and materials are run into cars, bunkers, granaries, and like receptacles either for transportation or storage.

The object of the invention is to enable the flow or discharge to be shut off instantly and with certainty and prevent any spilling, also to provide for relieving any choking by lumps of ore or coal tending to Wedge in the chute.

The invention consists of a pivoted or hinged gate arranged within the chute to swing upward and forward against the outflowing stream of ore, coal, and the like when it is required to shut oi? the How, also a plate arranged to form a part of the chute and movable to ease any jam of the commodity passing through the chute, said plate being preferably pivoted and counterbalanced and connected with the gate-operating means to move simultaneously therewith under certain conditions.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

- While the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of a chute, illustrating the application of the invention. Fig. 2 is a side elevation of the chute and connected parts. Fig. 3 is a detail view'of the catch for cooperating with the lever provided for actuating the gate and plate, the parts being in section and on a larger scale. Fig. 4

is a front view of the parts illustrated in Figs. 1 and 2, showing the same on a larger scale.

Fig. 5 is a vertical section on the line X X of Fig. 4 looking in the direction of the arrows, the gate and plate being shown in difl'erent positions by full and dotted lines.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The chute is indicated at 1 and may be of any construction and arrangement. depending upon the special character of work and parts with which it cooperates. A frame 2 supports the chute 1 and the parts cooperating with the controlling means. The gate 3 is pivoted or hinged at one end about in the plane of the bottom of the chute, as shown at L, and is arranged to swing upward and forward at its opposite end against the outflowing stream of material to shut off the discharge when required. The discharge is cut off when the gate 3 occupies the position shown by full lines in Fig. 5, and the chute is unobstructed or open for an outflow of the material .when the gate 3 occupies the position about as shown by the dotted lines in Fig. 5. When the gate is opened to its fullest extent, it rests upon an extension 5, projected from the delivery end of the chute and offset from the bottom a distance corresponding approximately to the thickness of the gate 3 to admit of the latter coming about flush with the bottom of the chute, so as not to ptfer any obstruction to the passage of the material when the gate is opened. A clearance-opening 6 is formed in the extension 5 adjacent to the pivoted or hinged end of the gate 3 to provide an escape for any material that may find its way upon the extension 5 around the hinged end of the gate. The outer or lower side of the gate3 is ribbed or fluted, so as to clear any material that may lodge upon the extension 5 and tend to prevent opening of the gate thereon. A bar or plate 7 is secured to the outer end of the gate 3, and its end portions project beyond the sides of the chute and are connected by toggle-levers 8 with a rock-shaft 9, journaled in brackets 10, secured to the frame 2 at a point above the delivery end of the chute. Wings 11 project from the outer corners of the gate 3 and overlap the curved edges 12 of the side walls of the chute and serve as guards to prevent the material or commodity passing over the edges of the side walls when closing the gate to shut off the discharge. The wings 11 are thickened near their juncture with the gate 3, as indicated at 13, to enable a substantial joint to be formed. The curved edges 12 are formed on the arc of a circle having the axis of the gate 3 as its center. Hence a close joint exists between said curved edges and the wings 11.

For operating the rock-shaft 9 a lever 1 1 is connected thereto at one end. This lever is held in an adjusted position by means of a catch 15, pivoted at one end within a box-bracket 16, attached to the frame 2. The catch 15 is forked and receives the lever 14: between the fork members. The catch is formed with a series of notches, as indicated at 17, so as to hold the lever 14 in an adjusted position. A pin 18 is fitted in an opening of the lever 14 and projects from opposite sides thereof to form stops which engage with the teeth of the fork members of the catch 15. A spring 19, arranged within the box portion of the bracket 16, normally exerts a pressure upon the catch 15 to hold it in engagement with the projecting ends or stops formed by the pin 18.

A plate 20 forms aportion of a wall of the chute 1 and is preferably arranged at the upper side of said chute and is pivoted at one end, as shown at 21, and is free to move atits opposite end. Normally the plate 20 extends parallel with the bottom of the chute; but in the event of the material or commodity tending to wedge in the chute said plate may be moved, so as to relieve any congestion and permit free passage of the material. A lip 22 is pendent from the outer end of the plate 20 and extends into the chute a short distance and serves to retard the material or commodity forming the topmost layer of the same passing through the chute, thereby insuring a uniformity of discharge. Side pieces 23 are pendent from the end portions of the plate 20 and over the upper edges of the side walls of the chute. A chain 24 or like connection is the coupling means interposed between the outer end of the plate 20 and the short arm 25 of a weighted lever 26,secured to the rockshaft 9, said weighted lever constituting a counterbalance for the plate 20, as well as for the gate 3. Weights 27 are applied to the outer end of the plate 20 to hold the same in normal position. When the gate 3 is opened, the connection 24: is free from any slack, so that a slight movement of the operating-lever 14: may rock the shaft 9 and pull upon the connection 2 1 and elevate the outer end of the plate 20 and relieve any congested condition of the commodity or material that may exist in the chute beneath said plate.

Having thus described the invention, what is claimed as new is- 1. In combination, a chute having an offset extension at its delivery end, a gate pivoted or hinged to the chute and adapted to open upon said extension so as to come about flush with the bottom of the chute, and operating means for closing the gate by a pivotal movement against the material passing therethrough, substantially as set forth.

2. In combination, achute having sidewalls with their rear edges formed on the arc of a circle, a gate pivoted or hinged, at one end to the chute about in line with the bottom thereof and concentric with the curved edges of said side walls, and wings at the sides of the opposite ends of the gate to overlap the curved edges of the side walls of the chute, substantially as described.

3. In combination, a chute, a gate pivoted or hinged at one end to the chute about in line with the bottom thereof, and wings at the sides of the opposite end of the gate to act as guards and confine the material, said wings having the portion adjacent to the gate thickened and overlapping the edges of the side walls of the chute, substantially as set forth.

4:. In combination, a chute, agate hingedly connected to the chute to close upward and forward against the outflowing stream of material, a rock-shaft, an operatinglever connected to the rock-shaft, a catch and stop cooperating with said lever to hold it and the gate in an adjusted position, and connecting means between the rock-shaft and gate, substantially as set forth.

5. In combination, a chute, a gate connected to the chute to close by pivotal movement, a rock-shaft, and toggle-levers connecting the said gate With the rock-shaft, substantially as specified.

6. In combination, a chute, a plate forming a portion of the upper wall of the chute and pivoted at one end and weighted at the opposite end, and operating means for moving the plate to effect clearance of the chute in the event of the material passing therethrough tending to choke.

7. In combination, achute, a plate arranged at the upper side of the chute and forming a part thereof, a rock-shaft, a counterbalanced lever secured to said rock-shaft, and a connection between the counterbalanced lever an d plate, substantially as set forth.

8. In combination, a chute,a gate pivoted to the chute and adapted to swing upward and forward, a pivoted plate arranged at the upper side of the chute, a counterbalanced rockshaft, connections between said rock-shaft and the plate and gate, and operating means for actuating the rock-shaft, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEF PIZA. [1,. s.]

Witnesses:

BENJ. F. I-IOPERLIK, JOSEPH LEISER.

IIO 

